Communication method of a communication server

Abstract

The invention discloses a communication server and a communication method. The communication server comprises a power supply module, main control modules, a serial port module, and a display module, wherein except for the power supply module, all other modules have independent CPUs and can be mutually communicated through CAN buses; the power supply module and the main control modules both adopt a double backup function, and the two main control modules realize the independent communication with other modules through one CAN bus respectively; and the main control modules are communicated with a remote monitoring system, the serial port module is communicated with a comprehensive protection device, and the main control modules are communicated with the serial port module through the CAN buses. Thus the information exchange between the remote monitoring system and the field comprehensive protection device is realized, and the realized communication server has the characteristics of high automation degree, good compatibility, quick response, high reliability, simple structure, and convenient operation and maintenance.

Description

technical field [0001] The invention relates to the technical field of data collection and communication protocol conversion, in particular to the technical field of fast data collection and protocol conversion of a low-voltage AC motor protection system. Background technique [0002] At present, low-voltage AC motors are widely used with low-voltage protection and monitoring devices, which can effectively protect low-voltage motors. Some low-voltage systems include hundreds of protection and monitoring devices. In order to realize remote automation, it is necessary to quickly and accurately transmit field data to the monitoring room. And rush to the scene to deal with it. Sometimes, supervisors want to remotely control the motor, such as starting and stopping. [0003] In the past, ordinary PCs were used as the intermediate link of data collection and conversion. Due to the limited number of serial ports of the PC, it is not Pass Reach fast requirements, and can not wor...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency that existing PCs cannot realize fast and reliable communication, the present invention provides a communication method for a communication server that can quickly collect a large amount of on-site data and upload it to a remote monitoring system. The technology is implemented in this way : It includes a power module, a main control module, a serial port module, and also includes a display module and a CAN bus. The structure of the display module is connected. The number of the serial port module in the system is different according to the specific location. Therefore, each different serial port has a different address. When initializing, the CPU of the main control module is based on the actual configuration. , set each serial port parameter and sending and receiving situation through the CAN bus, and then start the serial port to send. After the serial port receives the returned data, the CPU of the serial port module will save the data in its own buffer and upload it to the master through the CAN bus. The CPU of the module, the main control module receives the data transmitted by the serial port module, and saves the data in the corresponding numbered buffer according to its address. The serial port is uploaded to the remote monitoring system. When the main control module receives the remote control command from the remote monitoring system, it analyzes the serial port number that needs to be processed, converts the command into a command that the serial port module can recognize, and sends it to the corresponding Serial port module, the serial port module sends data to the comprehensive protection device through the designated serial port, the main control module and the serial port module both use CPU intelligent controller, the CPU of the main control module is a low-power high-performance embedded 32-bit ARM9 processor

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